Deployment

This skill covers deploying Expo applications across all platforms using EAS (Expo Application Services).

References

Consult these resources as needed:

• ./references/workflows.md -- CI/CD workflows for automated deployments and PR previews
• ./references/testflight.md -- Submitting iOS builds to TestFlight for beta testing
• ./references/app-store-metadata.md -- Managing App Store metadata and ASO optimization
• ./references/play-store.md -- Submitting Android builds to Google Play Store
• ./references/ios-app-store.md -- iOS App Store submission and review process

Quick Start

Install EAS CLI

bash
1npm install -g eas-cli
2eas login

Initialize EAS

bash
1npx eas-cli@latest init

This creates eas.json with build profiles.

Build Commands

Production Builds

bash
1# iOS App Store build
2npx eas-cli@latest build -p ios --profile production
3
4# Android Play Store build
5npx eas-cli@latest build -p android --profile production
6
7# Both platforms
8npx eas-cli@latest build --profile production

Submit to Stores

bash
1# iOS: Build and submit to App Store Connect
2npx eas-cli@latest build -p ios --profile production --submit
3
4# Android: Build and submit to Play Store
5npx eas-cli@latest build -p android --profile production --submit
6
7# Shortcut for iOS TestFlight
8npx testflight

Web Deployment

Deploy web apps using EAS Hosting:

bash
1# Deploy to production
2npx expo export -p web
3npx eas-cli@latest deploy --prod
4
5# Deploy PR preview
6npx eas-cli@latest deploy

EAS Configuration

Standard eas.json for production deployments:

json
1{
2  "cli": {
3    "version": ">= 16.0.1",
4    "appVersionSource": "remote"
5  },
6  "build": {
7    "production": {
8      "autoIncrement": true,
9      "ios": {
10        "resourceClass": "m-medium"
11      }
12    },
13    "development": {
14      "developmentClient": true,
15      "distribution": "internal"
16    }
17  },
18  "submit": {
19    "production": {
20      "ios": {
21        "appleId": "your@email.com",
22        "ascAppId": "1234567890"
23      },
24      "android": {
25        "serviceAccountKeyPath": "./google-service-account.json",
26        "track": "internal"
27      }
28    }
29  }
30}

Platform-Specific Guides

iOS

• Use npx testflight for quick TestFlight submissions
• Configure Apple credentials via eas credentials
• See ./reference/testflight.md for credential setup
• See ./reference/ios-app-store.md for App Store submission

Android

• Set up Google Play Console service account
• Configure tracks: internal → closed → open → production
• See ./reference/play-store.md for detailed setup

Web

• EAS Hosting provides preview URLs for PRs
• Production deploys to your custom domain
• See ./reference/workflows.md for CI/CD automation

Automated Deployments

Use EAS Workflows for CI/CD:

yaml
1# .eas/workflows/release.yml
2name: Release
3
4on:
5  push:
6    branches: [main]
7
8jobs:
9  build-ios:
10    type: build
11    params:
12      platform: ios
13      profile: production
14
15  submit-ios:
16    type: submit
17    needs: [build-ios]
18    params:
19      platform: ios
20      profile: production

See ./reference/workflows.md for more workflow examples.

Version Management

EAS manages version numbers automatically with appVersionSource: "remote":

bash
1# Check current versions
2eas build:version:get
3
4# Manually set version
5eas build:version:set -p ios --build-number 42

Monitoring

bash
1# List recent builds
2eas build:list
3
4# Check build status
5eas build:view
6
7# View submission status
8eas submit:list